 \textit{Panel A: Production coefficients }    &  \multicolumn{2}{c}{ }             \\     
                    &\multicolumn{1}{c}{Est.}&\multicolumn{1}{c}{S.E.}\\
 \hline   &&\\   
log(Labor)          &       1.303&       1.582\\
\addlinespace
log(Materials)      &       0.030&       1.173\\
\addlinespace
log(Capital)        &       0.279&       0.421\\
\addlinespace
log(Labor)*log(Capital)&      -0.103&       0.087\\
\addlinespace
log(Labor)*log(Materials)&       0.044&       0.252\\
\addlinespace
log(Materials)*log(Capital)&       0.018&       0.062\\
\addlinespace
log(Labor)*log(Labor)&       0.002&       0.176\\
\addlinespace
log(Materials)*log(Materials)&      -0.023&       0.084\\
\addlinespace
log(Capital)*log(Capital)&       0.036&       0.021\\
  &&\\  \hline      
 \textit{Panel B: Markups/markdowns }    &  \multicolumn{2}{c}{ }         \\     
                    &\multicolumn{1}{c}{Est.}&\multicolumn{1}{c}{S.E.}\\
 \hline   &&\\   
Average markdown    &       2.178&      11.978\\
\addlinespace
Average markup      &       0.709&       0.765\\
  &&\\    \hline    
